It's really low resolution, but I wonder what could be done with some super resolution techniques. Is the transfer function of these sensors well defined?
I don't know enough about thermal sensors to say with confidence and haven't looked up the spec sheet on this one at all. I'm just a fan of this manufacturer help them out with translation/documentation stuff occasionally. They market to prototypers and industrial clients and my experience is that their QA is good and they prioritize quality over lowest price.